Is there a good WLAN connectivity at the own sleeping room?

Yes.

Dear Remo Zehnder, thank you for your inquiry. We do offer great WiFi in guest rooms and hotel common areas. It is included as a part of the daily resort fee. Thank you and please do let us know, if we could be of further help. Have a good day.

Yes reasonable WIFI

Good wifi

There is a good wifi in the rooms.

i think is just wifi